Steam-plate.



O. P. BUSHNELL.

STEAM PLATE.

APPLICATION FILED MAY I3, IsI.

' Patented Nov. 6, 1917,

Inventor Witnesses C WZPM/eu.

Attorneys 0. P. BUSHNELL.

STEAM PLATE.

APPLICATION FILI-:D MAY I3. 191e.

Patented Nov. 6, 1917.

2 SHEETS-SHEET 2.

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Witne ses FCE.

OSCAR P. BUSHNELL, OF BELLEVILLE, NEW JERSEY.

STEAM-PLATE.

Specification of Letters Patent.

Patented-Nov. 6, 1917.

Application filed IvIay 13, 1916. Serial No. 97,349.

To all whom t may concern.'

Be it known that I, Osons P. BUsnNELL, a citizen of the United States, residing at Belleville, in the county of Essex and State of New Jersey, have invented a new and useful Steam-Plate, of which the following is a specication. f

The device forming the subject matter of this application is a steam plate of the sort used in restaurants, presses and elsewhere.

One object of the present invention is to provide a steam plate which may be built up at tritling expense.

Another object of the inventionis to provide a steam plate which will not lleak under Huid pressure. 1

It is within the province of the disclosure to improve generally and to enhance the utility of that type to which the present invention appertains.

lVith the above and other objects in view which will appear as the description proceeds, the inventionresides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed, without departing from the spirit of the invention.

1n the accompanying drawings Figure 1 shows in top plan, a steam plate constructed in accordance with the present invention, parts being broken away;

Fig. 2 is an elevation of the structure shown in Fig. l;

Fig. 3 is a section taken on the line 3--3 of Fig. 1;

Fig. 4 is a section taken on the line 4 4 of Fig. 1;

Fig. 5 is a fragmental horizontal section showing one of the connecting means;

Fig. 6 is a fragmental perspective showing a part of one of the side strips;

Fig. 7 is a fragmental perspectiye showinga portion of one of the end strips;

Fig. S is a fragmental perspective showing a part of one of the llers; and

Fig. 9 is a View similar to Fig. 4, but showing the pipe before being expanded.

The steam table forming the subject inatter of this application preferably is made of metal throughout and includes a bottom plate l on which is superposed a frame made of side strips 2 and end strips 3. The side strips 2 are provided in their inner edges with curved recesses 4 defining lugs 5. Superposed on the bottom plate 1 and abutting at their ends against the lugs 5 are primary spacers 6. Alternating with the primary spacers y6 and mounted on the bottom plate l are secondary spacers 7 having rounded ends 8 projecting into the recesses 4 in the inner edges of the side strips 2. Disposed upon the frame comprising the side strips 2 'and the end strips 3, and upon the spacers 6 and 7 is a top plate 9. The parts hereinbefore described areprovided with holes 10 adapted to receive rivets l1 or like connecting means whereby the plates 9 and 1, the side strips 2,7the end strips 3 and the spacers-6 and 7 may be united to forni a solid and substantial structure. The spacers 7 and 6 are separated, and the ends of the secondary spacers 7 are separated .fromthe walls of the notches or recesses 4 in the side strips 2 to form a sinuous channel 12 in the plate above described. In the channel 12 is placed a continuous pipe 14.

Y The structure above described may be duplicated at the ends of the plate, and when this duplication exists, spacers 15 are placed between the plates 1 and 9 midway between the ends of the table, so as to separate the table into two parts. When this two-part construction is resorted to, a second pipe 16, resembling the pipe 14, is used.

The numeral 17 designates a steam supply pipe connected with one end of the sinuous pipe 16. By means of a 'l' 1S, the steam supply pipe 17 is connected with a pipe 19, united with one end of the pipe 14. The other end of the pipe 14 is connected with a steam outlet pipe 20. A pipe 2l forms a steam outlet for the pipe 16.

The pipe 19 and one end of the pipe 14, the other end of the pipe 14 and the pipe 20, the pipe 17 and one end of the pipe 16, and the other end of the pipe 16 and the pipe 21 are united by unions, which are alike, one of these unions being shown in Fig. 5, in connection with the pipe 20 and one end of the pipe 14. In the channel 12 is formed a shoulder 22 coperating with a shoulder 23 on the end of the pipe 14. A tapered nipple 24 is threaded into the end of the pipe 14, the nipple 24 including an enlarged circular portion threaded into a correspondingly shaped recess in the channel 12. The nipple 24 terminates in an exterior head 25 onto which is threaded a coupling 26 having a shoulder 27 coperating with a shoulder 2S on a slee\'e threaded onto the pipe 20. Si packing gasket 30 is interposed between the. inner end ot the sleeve and the head ot the nipple Q4. The construction, obviously, is such that a leakage of steam at the ends of the sinuous pipe will be avoided. Further7 when the tapered end o1 the nipple Q4: is threaded into the enlarged end ot the pipe le, the latter will be expanded. to aid in forming a steain tight joint..

An important feature ot the invention reinains to be discussed. rEhe pipes 14 and 16 preferably are made oit copper, lead or sonic other material 'which nia)v be expanded under pressure. When the pipes are placed in the channels 1Q. the)v do not of necessity fit tightlv therein, but after they have been placed in the channels, the pipes are subjected to a high internal vfluid pressure,thus expanding there so that the)v fit closell7 Within the channels. The construction, theretore7 is such that a practically solid and eX- 'ceedinglVT strong and perfectlyv steam-tight plate or table niay be atforded.

ln Figs. 3 and t. the pipes have been shown as being ot rectangular cross section. rfhis construction, however, need not be resorted to. In Fig. 9 ot the drawings, the plates ot the table are denoted by the nuineral 31, the illers appear at 33 and the channel is shown at 32. The pipe 3st, in Fig. 9 is shown as being ot circular cross section, itbeing presupposed that. .in Fig. 9, the pipe has not Yet been expanded by pressure, as hereinbet'ore stated.

Having thus described the invention, what is claimed isi:-

A steain table comprising a traine including oppose-d side strips having recesses in their inner edges, thc recesses defining lugs; .pacers each haring one end extended into the recess ot one strip and shaped to centorni to said recess. the other end et each spacerl abutting against the lug on the other strip; and a single sinuous pipe disposed l etvfeen the spacers and betr-:een the Walls ot the recesses and the ends ot the spacers. the pipe coinpletel7 Afilling the channels detined by the longitudinal edges ot the spacers and by the ends ot the spacers and the walls of the recesses.

ln testimony that claini the toregoing as in)v own7 I have hereto attixed my signature in the presence of two Witnesses.

OSCAR P. BUSHNELL.

7Witnesses z lV. R. JEssoP, A. M. CLARK.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

